Process of coating a substrate with reticulated bacterial cellul

Details Process of coating a substrate with reticulated bacterial cellul Process of coating a substrate with reticulated bacterial cellul

1993-12-17

1997-06-10

Choi, Kathleen

Paper making and fiber liberation

Processes and products

Running or indefinite length work forming and/or treating...

162141, 162142, 162149, 162204, 427180, 427189, 427194, 427201, 427206, 427421, 427428, D21H 1900

Patent

active

056371977

ABSTRACT:
A suspension of bacterial cellulose having a reticulated structure has been conditioned to remain in suspension when the suspension is under shear so that it may be coated on a substrate. The suspension of bacterial cellulose is homogenized and thereafter filtered to provide a bacterial cellulose component having a size no greater than 125 microns. This allows a process for applying bacterial cellulose as a coating on a substrate on a substantially continuous basis, either by roll coating or spraying. It also provides a coated product in which the bacterial cellulose is substantially uniform, taking into account the normal discontinuities of roll coating and spray coating.

REFERENCES:
patent: 4374702 (1983-02-01), Turbak et al.
patent: 4861427 (1989-08-01), Johnson et al.
patent: 4863565 (1989-09-01), Johnson et al.
patent: 4919753 (1990-04-01), Johnson et al.
patent: 4988561 (1991-01-01), Wason
patent: 5011596 (1991-04-01), Shaw
Encyclopedia of Chemical Technology, vol. 16, John Wiley & Sons, New York, 1981, pp. 785-789.
Encyclopedia of Polymer Science and Engineering, vol. 3, John Wiley & Sons, New York, 1985, pp. 553 & 560-569.
Interstate Supply Company Inc., APV Gaulin "Innovators in Cell Disruption Technology Introduces the 30CD", 3 pages, no date.

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